Home / 157,141.24-235,593.06-78,311.14

Finding the Fourth Proportional to 157,141.24, 235,593.06 and 78,311.14

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Solution

The fourth proportional to 157,141.24, 235,593.06 and 78,311.14 is: 117,407.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,141.24 : 235,593.06 = 78,311.14 : x
  2. Step 2: Convert to fraction form
    157,141.24/235,593.06 = 78,311.14/x
  3. Step 3: Cross multiply
    157,141.24x = 235,593.06 × 78,311.14
  4. Step 4: Simplify right side
    157,141.24x = 18,449,561,104.69
  5. Step 5: Solve for x
    x = 18,449,561,104.69/157,141.24
  6. Step 6: Final answer
    x = 117,407.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.